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Finding the Fourth Proportional to 106,757.88, 159,903.54 and 54,076.92

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Solution

The fourth proportional to 106,757.88, 159,903.54 and 54,076.92 is: 80,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,757.88 : 159,903.54 = 54,076.92 : x
  2. Step 2: Convert to fraction form
    106,757.88/159,903.54 = 54,076.92/x
  3. Step 3: Cross multiply
    106,757.88x = 159,903.54 × 54,076.92
  4. Step 4: Simplify right side
    106,757.88x = 8,647,090,940.30
  5. Step 5: Solve for x
    x = 8,647,090,940.30/106,757.88
  6. Step 6: Final answer
    x = 80,997.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.